Minimizing cost of local variables access for DSP-processors

Recent work on compilation far DSP-processors deals with optimizing-access to focal variables of functions. The common way is to use one or more addre ss registers as pointers into the functions stack frame and modify it with post modify addressing modes (which are sometimes the only addressing modes ). Additionally to previous work we present an algorithm which assigns fram e pointer values over a whole procedure. Our algorithm also deals with basi c blocks, which have no accesses to local variables. The algorithm works wi th a new data structure, the control flow line graph, which is derived from the control flow graph. In am experiments, the algorithm showed improvemen ts Co similar algorithms.